Precision Twist Drill 5996419 Taper Length Cobalt Drill Bit

Product Description

The PRECISION TWIST DRILL 5996419 is a taper length cobalt drill bit designed for demanding metal-cutting applications in professional shop and field environments. It measures 0.1800 inches in diameter (Wire Size 15) with an overall length of 5.75 inches and a flute length of 3.375 inches. The 135-degree split point geometry reduces walking and allows self-centering starts without a center punch. Cobalt construction delivers the heat resistance needed when drilling hard ferrous and non-ferrous materials. This bit is right-hand cut with a regular spiral flute and a straight shank, making it compatible with standard drill chucks.

This taper length drill bit is suited for machinists, millwrights, pipefitters, and maintenance technicians working on structural steel, stainless fabrications, and non-ferrous assemblies. The extended flute-to-diameter ratio of 6xD improves chip evacuation in deeper holes compared to a jobber-length bit. Typical applications include drilling through alloy steel, carbon steel, stainless steel, cast iron, aluminum, brass, bronze, copper, nickel alloys, magnesium, and reinforced plastic materials. It is built to ANSI standards and classified as a heavy-duty grade tool.

Key Features

• Cobalt tool material for high-heat resistance when cutting hardened and stainless steels
• 135-degree split point with web thinning for self-centering starts and reduced thrust
• Taper length body with 6xD flute-to-diameter ratio for improved chip clearance in deeper bores
• Right-hand cut, regular spiral flute with straight shank fits standard drill chucks
• Coated finish extends tool life across a broad range of workpiece materials
• Meets ANSI standards; heavy-duty grade construction

Compatibility

Designed for use in standard straight-shank drill chucks on drill presses, hand drills, and CNC drilling equipment. Compatible workpiece materials include alloy steel, aluminum, aluminum alloy, brass, bronze, carbon steel, cast iron, copper, graphite, hardened steel, high-strength bronze, magnesium, magnesium alloy, malleable iron, nickel, nickel alloy, reinforced plastic materials, and stainless steel.

Installation Notes

Install into a clean, properly tightened drill chuck before use. Power down and lock out the drilling equipment before changing bits. Ensure the shank is fully seated and the chuck key is removed before operation. Use appropriate cutting fluid when drilling ferrous metals to extend tool life and maintain dimensional accuracy.